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Study of Pembrolizumab With Pemetrexed and Oxaliplatin in Chemo-Refractory Metastatic Colorectal Cancer Patients

ABSTRACT: This is a Phase Ib study to evaluate the safety and preliminary anti-tumor activity of pembrolizumab in combination with pemetrexed with or without oxaliplatin in patients with chemo-refractory microsatellite stable (MSS) metastatic colorectal cancer (mCRC) without any further standard treatment options.

DISEASE(S): Metastatic Colorectal Cancer,Colorectal Neoplasms

PROVIDER: 2280743 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Epacadostat in Combination With Pembrolizumab and Azacitidine in Subjects With Metastatic Colorectal Cancer

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A phase Ib trial evaluating the safety, efficacy, and immunologic effects of pembrolizumab plus paclitaxel or flat-dose capecitabine in 1st/2nd line metastatic triple-negative breast cancer

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A Phase 2 Study of Pembrolizumab (MK-3475) in Combination With Azacitidine in Subjects With Chemo-refractory Metastatic Colorectal Cancer

Project description:This is an open label, single-arm, Phase 2 trial to evaluate the anti-tumor activity, safety, and tolerability of Pembrolizumab in combination with azacitidine in subjects with chemo-refractory mCRC without any further standard treatment options Dosage and regimen for all study periods * Pembrolizumab will be given at 200 mg every 21 days. * Azacitidine will be given at 100 mg daily subcutaneous injection on days 1-5 every 21 days. The first assessment of tumor response will be performed after cycle 3 (9 weeks), and thereafter approximately every 9 weeks, every 3 cycles of therapy. The modified RECIST 1.1 will be used to establish disease response or progression. All patients will be evaluated and graded for adverse events according to the NCI Common Terminology for Adverse Events, version 4.0 (NCI-CTCAE).

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Uracil DNA glycosylase (UNG) loss enhances DNA double strand break formation in human cancer cells exposed to pemetrexed

Project description:To test the effects of uracil DNA glycosylase (UNG) loss on the formation of double strand breaks (DSBs) by the anti-cancer agent pemetrexed, we performed ChIP-seq for serine 139-phosphorylated H2AX (gammaH2AX), a marker of DSBs, in human cells wild-type or deficient for UNG in combination with pemetrexed treatment. UNG deficiency results in an increase in DSBs upon pemetrexed treatment, and we found that pemetrexed treatment induces DSBs at different genomic locations in UNG wild-type and knockout cells. Similar results were observed upon cisplatin treatment of UNG wild-type and knockout cells, and the genomic locations of DSBs were distinct between pemetrexed-treated and cisplatin-treated samples. Taken together, our results suggst differential mechanisms for DSB formation in UNG-competent and UNG-deficient cells. The genomic distribution of gammaH2AX in UNG WT and KO cells treated with pemetrexed or cisplatin was determined by ChIP-seq

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